Ribblehead Viaduct is a railway viaduct across the valley of the River Ribble at Ribblehead, in North Yorkshire, England, 28 miles (45 km) north west of Skipton and 26 miles (42 km) south east of Kendal. The viaduct is a Grade II* listed building and a Scheduled Ancient Monument.
Ribblehead viaduct is 440 yards (400 m) long, and 104 feet (32 m) above the valley floor at its highest point. It is made up of twenty-four arches of 45 feet (14 m) span, with foundations 25 feet (7.6 m) deep. The north end of the viaduct is 13 feet (4.0 m) higher in elevation than the south end. 1.5 million bricks were used in the construction and some of the limestone blocks weighed 8 tons each.